By the looks of it, Guano could probably dismiss Neil as being master any time he wants and just take Jean away.

Hopefully this won’t follow a Fairly OddParents style of Neil having to follow a set of rules (certain wishes not allowed for stupid reasons, Jean’s status as a genie is not allowed to be revealed to any humans without genies themselves, or pissing off the higher-ups [Guano = Jorgen], or he loses her forever and has his memories erased, etc…).

Given this comic I was also expecting Guano to have said ‘girl’ instead of ‘slug’.